Agastache plant named ‘Cotton Candy’

ABSTRACT

A new and distinct form of  Agastache  plant characterized by medium size, light purplish pink flowers in narrow, tight clusters, purple calyces extending the flower color time for the plant, a low branching habit, a long bloom time, and excellent vigor.

Botanical denomination: Agastache hybrid.

Variety designation: ‘Cotton Candy’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Agastache, given the name, ‘Cotton Candy’. Agastache is in the family Lamiaceae. The new cultivar is a F3 selection from a planned breeding program. The seed parent was Agastache ‘Summer Love’ (U.S. Plant Pat. No. 20,510). The pollen parent is unknown. Compared to Agastache ‘Summer Love’, the new variety has a shorter habit and lighter flower color.

This plant exhibits the following characteristics that make it unique:

-   -   1. medium size, light purplish pink flowers in narrow, tight         clusters,     -   2. purple calyces extending the flower color time for the plant,     -   3. upright habit with low branching,     -   4. a long bloom time, and     -   5. excellent vigor.

The new variety has been reproduced only, by asexual propagation (cuttings and micropropagation). Each of the progeny exhibits identical characteristics to the original plant. Asexual propagation by division and micropropagation as done in Canby, Oreg., shows that the foregoing characteristics and distinctions come true to form and are established and transmitted through succeeding propagations. The present invention has not been evaluated under all possible environmental conditions. The phenotype may vary with variations in environment without a change in the genotype of the plant.

BRIEF DESCRIPTION OF THE DRAWING

The drawing shows a group of nine-month-old Agastache ‘Cotton Candy’ growing in the field in late summer in Canby, Oreg.

DETAILED PLANT DESCRIPTION

The following is a detailed description of the new Agastache cultivar based on observations of a nine-month-old specimen grown outside in the ground in the trial beds in Canby, Oreg. Canby is Zone 8 on the USDA Hardiness map. Temperatures range from a high of 95 degrees F. in August to an average of 32 degrees F. in January. Normal rainfall in Canby is 42.8 inches per year. The color descriptions are all based on The Royal Horticultural Society Colour Chart.

-   Plant:     -   -   Form.—Upright, spreading herbaceous perennial.         -   Cold hardiness.—USDA Zone 7–9.         -   Size.—Grows to 45 cm wide and 65 cm tall to the top of the             flowers.         -   Vigor.—Excellent.         -   Stem.—Square, grows to 4 mm wide and 35 cm tall, uncinate,             internodes average 4.5 cm long, Yellow Green 147B.         -   Roots.—White 155B, fibrous, plants root easily from stem tip             cuttings. -   Leaf:     -   -   Type.—Simple.         -   Arrangement.—Opposite.         -   Shape.—Ovate to deltoid.         -   Venation.—Pinnate.         -   Margins.—Crenate.         -   Apex.—Acute.         -   Base.—Truncate.         -   Blade size.—Grows to 4 cm long and 3 cm wide.         -   Surface texture.—Very short, uncinate hairs on both sides.         -   Petiole description.—2 cm long and 1.2 mm wide, pubescent,             Yellow Green 147B.         -   Leaf color.—Top side Yellow Green 147A, bottom side Yellow             Green 147B. -   Inflorescence:     -   -   Type.—Terminal spike with 11 to 19 dense whorls.         -   Number of flowers.—Up to 300 per spike.         -   Peduncle.—2 cm to 5 cm tall and 1.5 mm wide, pubescent,             Yellow Green 147B.         -   Pedicel.—1 mm to 2 mm long, pubescent, Yellow Green 147B.         -   Bloom period.—June through frost in Canby, Oreg. -   Flower bud:     -   -   Size.—12 mm long and 3 mm wide at the widest point prior to             opening.         -   Description.—Tubular.         -   Surface texture.—Pubescent.         -   Color.—Greyed Orange 174D. -   Flower:     -   -   Type.—Zygomorphic.         -   Shape.—Bilabiate, tubular.         -   Size.—2 cm long and 6 mm wide.         -   Corolla description.—17 mm long and spreads to 6 mm wide,             color inside and outside Purple 75D, pubescent outside and             glabrous inside, tube 12 mm long and 1 mm to 3 mm wide; 2             upper lobes joined 2 mm long and 2.5 mm wide, ovate, acute,             entire; three lower lobes, two spreading sideways, each 1.5             mm long and 2 mm wide, obtuse, entire; the bottom lobe             broad, reflexed, obovate, obtuse, entire; 3 mm wide and 2.4             mm deep.         -   Calyx description.—10 mm long and 2.5 mm wide, color Yellow             Green 147C on bottom half to Purple 77A on top half,             pubescent outside and glabrous inside, 5 lobed, lobes             narrow, 2 mm long, entire, acuminate.         -   Pistil description.—25 mm long, ovary 0.5 mm long, Yellow             Green 146C, style 24.5 mm long, stigma and style Red Purple             69D.         -   Stamen description.—4 in number, paired, exerted and             reflexed, filaments 9 mm long, Violet 84A, anthers 1 mm             long, Purple 77D, pollen White 155D.         -   Fragrance.—Herbal.         -   Lastingness.—A spike blooms for about 3 weeks on the plant. -   Fruit: 4 nutlets, Green 144A. -   Seed: Oblong, 1.5 mm long, Black 202A, low fertility. -   Pests and diseases: Agastache are known to be susceptible to mildew     and rust in dry summer months. The new cultivar has no known     resistances but has shown no problems in Canby, Oreg. 

1. A new and distinct cultivar of Agastache plant substantially as shown and described. 